Automatic Data Processing vs Paychex
Side-by-side comparison of AI visibility scores, market position, and capabilities
Roseland NJ payroll and HCM leader (NASDAQ: ADP) $19.2B FY2024 revenue (+7%); 1.1M clients, $55B+ float income, TotalSource PEO, ADP NER economic data competing with Paychex and Workday.
About
Automatic Data Processing, Inc. (ADP) is a Roseland, New Jersey-based payroll processing and human capital management company — publicly traded on the NASDAQ (NASDAQ: ADP) as an S&P 500 Information Technology component — providing payroll processing, tax administration, benefits administration, HR management, time and attendance, talent management, and retirement plan services to 1.1 million clients ranging from small businesses (1-49 employees) to large enterprises (1,000+ employees) through approximately 58,000 employees globally. In fiscal year 2024 (ending June 2024), ADP reported revenues of $19.2 billion (+7% year-over-year) and adjusted EPS of $9.14 (+12%), continuing the company's consistent mid-to-high single digit revenue growth and double-digit EPS growth from operating leverage and capital return. CEO Maria Black (appointed 2023, ADP's first female CEO, previously leading ADP's employer services division) leads ADP's strategy of deepening client platform engagement: ADP's "employer of record" (EOR) and professional employer organization (PEO — ADP TotalSource) services handle all payroll, HR compliance, and benefits administration for small and mid-size businesses — creating outsourcing relationships where ADP becomes the operational HR department for companies that lack internal HR expertise. ADP's client fund float (ADP holds $55+ billion in client payroll funds between the time employers fund payroll and ADP distributes payments to employees and tax authorities — a multi-day float period generating interest income on $55B at current interest rates) generated $1.6B+ in interest income in FY2024 as rates remained elevated, creating an earnings tailwind that amplifies ADP revenue growth during high-interest rate environments.
Rochester NY HCM and payroll platform (NASDAQ: PAYX) at $5.5B+ FY2025 revenue; $4.1B Paycor HCM acquisition (April 2025) adding 49,000 clients competing with ADP for US small and mid-market HR platform.
About
Paychex, Inc. is a Rochester, New York-based human capital management (HCM) and payroll company — publicly traded on NASDAQ (NASDAQ: PAYX) as an S&P 500 component — serving nearly 800,000 clients across the United States and Europe with payroll processing, HR technology, employee benefits administration, retirement services, insurance services, and PEO/ASO solutions through the Paychex Flex cloud platform. In fiscal year 2025, Paychex reported annual revenue exceeding $5.5 billion with more than 16,000 employees. In April 2025, Paychex completed the acquisition of Paycor HCM for approximately $4.1 billion — the largest acquisition in Paychex history — adding 2,900 employees, 49,000 clients, and HCM capabilities for 2.7 million employees, significantly expanding Paychex's presence in the mid-market and enterprise segments. AI-powered Paychex Recruiting CoPilot and HR analytics tools reflect Paychex's technology investment. Founded in 1971 by Tom Golisano in Rochester with $3,000 in initial capital, Paychex pioneered affordable payroll outsourcing for small businesses.
AI Visibility Head-to-Head
Key Details
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.